Improvement in car-couplings



UNITED STATES PATENT OFFICE.

IMPROVEMENT IN CAR-COUPLINGS.

Speeication forming part of Letters Patent No. 117,992, dated August 15,1871.

To all whom-'it may concern:

Be it known that I, PERRY W. DAVIS, of Portland, in Multnomah county, inthe State of Oregon, have invented an Improved Car-Coupling; and I dohereby declare the following to be a full and exact description ofthesame, reference being had to the accompanying drawing making a part ofthis specification.

The drawing represents a vertical section through the center ofthecoupling, A and B being called bumpers My invention relates to that kindor" coupling known as a lun-colliding, and opening and closing the pinofthe same for the purposes herein specified. rlhis coupling` consists,essentially, ofthe four parts or pieces G, K, H, and E.

The operation of the device is as follows: The rear attachment A isprovided with a spiral spring, E, which operates against the link F. Thelink F, being thrust against the pin C, is for a time held in checkthereby, until the cani H is pushed under the incline on the piece G,Which raises it to the position shown by the dotted lines at L. In thepiece G the pin O is iixed. As the piece G rises it carries the pin C,and as soon as the pin is raised the spiral spring E thrusts the link Funder and beyond the pin C; and as soon as the forward bumper B advancesthe pin C falls in place inside the link F. For the purpose ofunconpling, when there is a strain on the pin C, the bent lever K isused. The short end is bent in the form of an eccentric centered on apin, J, in the piece G; and the piece G is held in place by the pins Cand I rising vertically on pin I.

From the above it will be seen that the coupling is self-acting and iseasily nncoupled by the lifting ofthe lever K, be the strain. great orsmall; and the hooking direction ofthe pin C auginents the securityagainst uncoupling, which cannot be done without raising the lever K.

I claim as my invention- The draw-head A provided with the cam H, springE, and link F, in combination with drawhead B provided with piece G,lever K, and pin C, substantially as described.

PERRY W. DAVIS.

Vitnesses WM. O. ALLEN, JOHN SnANKs.

